(Present)
Azur Lane HQ

Once the shipgirls that were present during that battle tended their injuries and after all the shipgirls gathered, Y/N now starts telling them what happened after his death.

(Flashback)
?????

Y/N is seen woke up in a mysterious place.

Y/N: Ugh, those bastards... Huh? Where am I? And why am I still alive?

???: Hey, I want you to go to that place over there, it's very important, you will thank me later.

Y/N: Huh? Who is this? (Where is that voice coming from?)

???: Just do as I say, it's not like you have a choice anyway as you are in literally nowhere right now.

Y/N: Fine fine, I will go, Mr. Mysterious Voice.

(Present)

Prince of Wales: So you just follow that mysterious voice?

Y/N: I know it sounds stupid but I had no other choice.

(Flashback)

As he arrived at the place the voice wanted him to go, he is quite surprised by what he saw.

Y/N: Whoa... *Whistle* That's a sick looking robot right there.

???: That Mecha's name is Shurouga and I want you to pilot it.

Y/N: Shurouga, huh. Wait, what do you mean pilot it? I just saw this robot and you want me to pilot it?! I don't even know how to control this thing.

One of the Shurouga's hands then came down towards him as if to tell him to get in.

???: Don't worry about it. Just enter the Shurouga, it's the only way to get out of this place.

Y/N: Fine, I hope you won't try anything funny or else.

???: Hmph, what are you gonna do to me anyway? I'm just a voice.

Y/N: Yeah yeah...

Y/N then get on the Shurouga's hand as it move towards where its cockpit located. After he sat on the Mecha, he felt a painful headache.

Y/N: Ah! Fuck! I know I shouldn't trust that voice.

After the pain was gone, he suddenly knows how to control Shurouga as if he piloted this Mecha for all of his life.

Y/N: That's strange, I feel like I know how to control this thing as if I have piloted this thing before. Whatever, at least I can get out of whatever this place is. Let's go, Shurouga!

(Present)

Y/N: After I finally get out of that place, I realized that was the last time I heard that mysterious voice since it was gone the moment I got out and I never heard that voice again ever since and I got drifted into another universe. Anyways, the first world I went into after getting out of that place is a world of many unique abilities such as Quirks, Semblance, and Sacred Gears. Unfortunately these powers can corrupt people's mind. There are many Fake Heroes who don't care about people they should protect, they don't care if they accidentally killed civilians in their fights, They only wanted to get Fame and Money. The worst of them all is the Union Academy who thought they can play god just because they have powers. I knew I could just leave and continue looking for a way to get back home but after I saw what happened there, I have to help those people.

Belfast: That selfless attitude is one of the reasons why we love you so much, Master.

Y/N: Thanks. Anyway, thankfully there are some people there that knew that they can't just let this happens. I also met one of my alternate universe counterparts there, he's younger than me and pilots a Mecha called Cybuster.

Bismarck Zwei: Cybuster?

Y/N: Yeah, here's the picture of it.

He shows them a picture of Cybuster.

(A/N: NEPPUU! SHIPPUU! CYBUSTER!)

Illustrious: I love the knightly looks of this Mecha.

Y/N: I agree with you there! *Ahem* After we know each other better, we decided to work together to defeat Union Academy with our allies that this world's Y/N gathered including some people who defected from Union Academy (Glynda, Team RWBY, Team JNPR, Team CFCY, Rias' Peerage (minus Issei), Sona's Peerage, Phenex Peerage (minus Riser), Dekusquad, most of the class 1-A and Class 1-B (minus Bakugo and Monoma)), some Pro Heroes who wanted to change the society for the better (All Might, Midnight, Mirko, Hawks, Ryukyu), and some other people who don't like how these Fake Heroes think they can do whatever the hell they want.

Y/N: After gaining more allies and some planning, we decided to finally end Union Academy in that world once and for all.

(Flashback)
Union Academy

Y/N (Cybuster): Today is the day where we defeat Union Academy and the Fake Heroes that plagues this world for good. Let's go, Cybuster!

Y/N: Let's finish them off for good, Shurouga!

Both of them then unleashed a powerful combination attack.

Y/N (Cybuster): CYFLASH!

Y/N: EMBRACE THE INFERNO!

Their combined attack devastated most of the Union's army.

Meanwhile, their allies fought well against Union.

Rias: I should have never revived you, Issei.

Izuku: It's time to put you down for good, Kacchan, no, Bakugo!

Team RWBY, JNPR, CFCY and Glynda were seen fighting other huntsmen who sided with Union.

Their other allies were seen fighting any fake heroes that trying to stop them.

Back to double Y/N. Y/N (Cybuster) was seen about finish off the headmasters. Y/N concentrated the Cyflash energy around Cybuster's body, creating four glowing spheres of prana from the Cybuster's arms.

Y/N (Cybuster): Take this! COSMO NOVA!

And then they are hurled at the headmasters, focusing all the Cyflash destructive power at them.

While Y/N was seen dealing with some reinforcements by shooting rays of beam from Shurouga's head towards them.

Y/N: Luster Edge!

And then summoned some black dragon-like creatures from its body to crush them.

Y/N: Go!

(A/N: I found these gifs from Deviantart, from user AlexBraveDragon, I feel something familiar from him somehow. ShinzaGodWarrior, is this you?)

(Timeskip)

After they defeat the Union Academy and later the villains, They decided to rebuild the academy into Unity Academy or Verse Academy (they're not quite decided which name they will choose yet at the time) where all kinds of people can join and also to actually help the weak with Glynda as the headmaster. Now, it was time for Y/N to leave.

Y/N (Cybuster): So, I guess it's time for you to leave, huh?

Y/N: Yeah, I have a great time here but I need to leave to find a way back to my home universe.

Y/N (Cybuster): Well, take care of yourself, bro.

Y/N: Thanks man, you take care of yourself and your girls too.

Y/N (Cybuster): [smiles] I will.

(Present)

Y/N: And that's the end of my adventure in the first world I've visited after getting out of that unknown place.

(A/N: Anyway, more bnuuy and other images)